The Long Feathers In A Male

The long feathers in a male are the result of sexual selection,which is a form of natural selection. The female quetzal birds have a gene in them that make the male birds with longer tales more attractive to them. Natural differences in males are some that were born with long tails while others where born with short tails. The male quetzal birds that have the longer tails are more attractive to the females than the shorter tail males. This being that the more the females mate with the longer tail males, the shorter tails with eventually cease to exist.